Active ingredient chemistry and systemic action
- Active ingredient: Glyphosate (ammonium salt) 71% SG (HRAC Group 9).
- Mode of action: Inhibits the 5-enolpyruvylshikimate-3-phosphate (EPSP) synthase enzyme, blocking aromatic amino acid synthesis.
- Systemic translocation: Moves downward through phloem vessels to destroy deep root systems, rhizomes, and stolons.
- Complete weed control: Causes progressive chlorosis, wilting, and complete desiccation of treated weeds within 7 to 14 days.
Statutory restrictions and approved uses in India
- Regulatory directive: Under Government of India notifications, glyphosate application is restricted to tea plantations and non-cropped land areas.
- Application mandate: Must be applied through Pest Control Operators (PCOs) or authorized trained personnel following safety guidelines.
- Non-selective herbicide: Destroys all green plant tissue indiscriminately; never allow spray drift to touch standing field crops or orchard stems.
Safe application practices and environmental guidelines
Use clean water free from suspended clay particles, which inactivate glyphosate molecules. Apply using flat-fan or floodjet nozzles equipped with a protective spray hood to eliminate drift. Do not apply when rain is anticipated within 4 to 6 hours. Operators must wear full personal protective equipment including boots, gloves, and protective eye shields.
Official source
Check the latest rules, benefits and forms here. KisanPe is an independent platform and is not a government website.
Central Insecticides Board & Registration Committee (CIB&RC) ↗Related on KisanPe
Common questions
What is the active ingredient in Mera 71?
Mera 71 contains Glyphosate 71% SG (ammonium salt).
Where is glyphosate legally permitted to be applied in India?
Under official CIB&RC regulations, glyphosate is approved for use in tea plantations and non-cropped areas.
Why does muddy water reduce glyphosate effectiveness?
Glyphosate binds strongly to suspended soil and clay particles in water, neutralizing its herbicidal activity before it reaches weed foliage.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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